Audio getting intense without anything happening and remaining that loud.

Description: I was on perimeter in north relay when all of a sudden the music got really intense and loud (to the point where I couldn't hear most other sounds very clearly). I thought it might subside and stop, but... it stayed that loud for like, a minute or 2, until which I got sniped and chased by someone whom I couldn't hear coming :(. I've never had the music spike like this before when nothing was happening, +  I'm quite sure it was a bug because it would not stop.

Platform: Steam

Player: Chilla 9000#5586

Time: about 10 minutes ago.